When was RheEnergise founded?

RheEnergise was founded in 2019 and raised its 1st funding round 2 years after it was founded.

Where is RheEnergise located?

RheEnergise is headquartered in London, United Kingdom. It is registered at C/O Browne Jacobson Llp 15th Floor, 6 Bevis Marks, London, United Kingdom, EC3A 7BA.

Who is the current CEO of RheEnergise?

Stephen Crosher of RheEnergise. They have also founded 1 company.

Which legal entities is RheEnergise associated with?

RheEnergise is associated with RHEENERGISE LIMITED.

How many employees does RheEnergise have?

As of Jun 30, 2026, the latest employee count at RheEnergise is 40.

Is RheEnergise a funded company?

RheEnergise is a funded company, having raised a total of $3.35M across 6 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on Jan 27, 2021.

How much is RheEnergise worth?

The latest valuation of RheEnergise is £***** as of Mar 19, 2021.

When was the latest funding round of RheEnergise?

RheEnergise's latest funding was a $***** Grant (prize money) round on Jan 23, 2026, with participation from 0 investor.

Where does RheEnergise rank among its competitors?

RheEnergise ranks 12th amongst 217 active competitors, of which 57 are funded. It stands 11th in terms of total funding among its competitors. The most recent competitor to raise funding was Renewable Iron Fuel Technology, which secured $96.6M in Mar, 2026.

Who are the top competitors of RheEnergise?

RheEnergise's top competitors include Northvolt, Form Energy and Amperehour Solar Technology. Among them, Renewable Iron Fuel Technology secured the most recent funding round in March, 2026.

RheEnergise - 2026 Company Profile, Team, Funding, Competitors & Financials

Company Details

Developer of high-density hydro long-duration energy storage technology. The company focuses on improving traditional pumped-hydro storage by using a fluid that is denser than water. It operates in the renewable-energy and grid-storage sector, especially long-duration energy storage. It works during low-demand periods, electricity from renewable sources is used to pump the dense fluid uphill into storage tanks. It addresses the need for large-scale, long-duration energy storage to decarbonize energy systems. It provides a low-cost, scalable, and clean solution for balancing intermittent renewable energy sources with demand.

Website: rheenergise.com
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Registered Address: C/O Browne Jacobson Llp 15th Floor, 6 Bevis Marks, London, United Kingdom, EC3A 7BA

Key Metrics

Founded Year

2019

Location

London, United Kingdom

Stage

Seed

Total Funding

$3.35M in 6 rounds

Latest Funding Round

Grant (prize money), Jan 23, 2026, $*****

Post Money Valuation

£***** as on Mar 19, 2021

Investors

Low Carbon Innovation Fund & 6 more

Ranked

12^th among 217 active competitors

Employee Count

40 as on Jun 30, 2026

Similar Companies

Raygen & 26 more

View RheEnergise's full profile

RheEnergise is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
RHEENERGISE LIMITED CIN: 11927250 , United Kingdom, Active	Apr 04, 2019	-	12 (As on Dec 31, 2024)

RheEnergise has raised a total funding of $3.35M over 6 rounds. Its first funding round was on Jan 27, 2021. RheEnergise has 4 institutional investors and 3 angel investors.

Here is the list of recent funding rounds of RheEnergise:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Jan 23, 2026	1195319	Grant (prize money)	3179735	8831894	5358199	6249656
Dec 08, 2025	2966749	Seed	1795403	2097300	2686585	8621534
Jul 05, 2025	7330430	Grant (prize money)	1597325	9666939	7324529	European Innovation Council

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View details of RheEnergise's funding rounds and investors

The founders of RheEnergise are Graham Cook, Stephen Crosher and Tamas Bertenyi. Stephen Crosher is the CEO of RheEnergise.

Here are the details of RheEnergise's key team members:

Graham Cook: Co-Founder & CFO of RheEnergise. They serve on the board of 1 company.
Contact Info: 1 email address
Stephen Crosher: Co-Founder & CEO of RheEnergise. They serve on the board of 1 company.
Contact Info: 1 email address
Tamas Bertenyi: Co-Founder & CTO of RheEnergise. They serve on the board of 1 company.
Contact Info: 1 email address

RheEnergise's Board of Directors

RheEnergise's board has 5 active members. Graham Cook, Stephen Crosher, Tamas Bertenyi and Richard Charles Cochrane are part of team and James Malcolm Campion is independent board member.

Here is the list of RheEnergise's board of directors:

Name	Type	Representing	Status	Duration
Graham Cook	Team	-	Current	7y 1m
Stephen Crosher	Team	-	Current	7y 1m
Tamas Bertenyi	Team	-	Current	7y 1m
Richard Charles Cochrane	Team	-	Current	7y 1m
James Malcolm Campion	Independent board member	-	Current	5y 1m

View details of RheEnergise's Founder profiles and Board Members

RheEnergise's employee count trend

RheEnergise has 40 employees as of Jun 26. Here is RheEnergise's employee count trend over the years:

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Top competitors of RheEnergise include Northvolt, Form Energy and Amperehour Solar Technology. Here is the list of Top 10 competitors of RheEnergise, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Northvolt Sweden, Acquired	Manufacturer of lithium-ion batteries for electric vehicles	$9B	Goldman Sachs, Volkswagen & 51 others	75/100
2nd	Form Energy 2009, Somerville (United States), Series F	Clean energy technology platform developing long-duration iron-air battery systems	$1.22B	ArcelorMittal, GIC & 36 others	71/100
3rd	Amperehour Solar Technology 2017, Pune (India), Series A	Provider of energy storage systems and energy management platform solutions	$7.45M	VHGB, Wellfound & 23 others	66/100
4th	PowerX 2021, Minato (Japan), Public	Manufacturer of stationary battery storage systems and related energy services	$112M	Nippon Gases, Spiral Capital & 36 others	64/100
5th	VFlow Tech 2018, Singapore (Singapore), Series A	Manufacturer of vanadium redox flow batteries for energy storage solutions	$33.5M	UntroD, Granite Asia & 34 others	64/100
6th	Noon 2018, Palo Alto (United States), Series A	Provider of solutions for flow batteries	$31M	Clean Energy Ventures, Aramco Ventures & 14 others	64/100
7th	Hydrostor 2010, Toronto (Canada), Series D	Developer of advanced compressed air energy storage for grid applications	$565M	Lorem Partners, Canoe Financial & 16 others	64/100
8th	Verlume 2013, Inverurie (United Kingdom), Series A	Manufacturer of subsea battery systems and intelligent energy management technology	$12.3M	Par Equity, The Scottish National Investment Bank ... & 37 others	62/100
9th	Renewable Iron Fuel Technology 2020, Eindhoven (Netherlands), Series B	Developer of iron fuel technology for industrial heat decarbonization	$111M	PGGM, Rubio impact Ventures & 6 others	61/100
10th	Fox ESS 2019, Wenzhou (China), Series D	Manufacturer of inverters, chargers, batteries, and energy storage system components	$141M	Ori-mind Capital, Panorama Capital	59/100
12th	RheEnergise 2019, London (United Kingdom), Seed	Developer of high-density hydro long-duration energy storage technology	$3.35M	European Innovation Council, Crowdcube & 5 others	58/100